Oklan

The Oklan flows from the Koryak highlands into the Penzhina, joining a river system that reaches the Sea of Okhotsk. Its valley leads through northern Kamchatka's interior, where Koryak communities occupied the tundra and river country. In 1679 Russian Cossacks established Aklansky ostrog on the river to collect fur tribute. The post also held Indigenous hostages as the Russian authorities sought to enforce their claims in the region.